"Cassirer employs his remarkable gift of lucidity to explain the major ideas and intellectual issues that emerged in the course of nineteenth century scientific and historical thinking. The translators have done an excellent job in reproducing his clarity in English. There is no better place for an intelligent reader to find out, with a minimum of technical language, what was really happening during the great intellectual movement between the age of Newton and our own."—New York Times.

"No better memorial of a great scholar could be offered to his many friends and admirers in the United States and England than this fine translation."—The Thomist

"Cassirer employs his remarkable gift of lucidity to explain the major ideas and intellectual issues that emerged in the course of nineteenth century scientific and historical thinking. The translators have done an excellent job in reproducing his clarity in English. There is no better place for an intelligent reader to find out, with a minimum of technical language, what was really happening during the great intellectual movement between the age of Newton and our own."—New York Times

"Convincingly illustrates the way in which historical studies in science and philosophy can and should be made directly relevant to current developments and problems."—Philosophical Review